The 2012 Chevrolet Tahoe Hybrid is available as a 4-door, 7-seat sport utility. Starting at $51,970, the 2012 Chevrolet Tahoe Hybrid 4x2 is powered by a 6.0L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 23-mpg on the highway. The top of the line 2012ChevroletTahoe Hybrid4x4 , priced at $ 54,775 , is powered by a 6.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 23-mpg on the highway.